The Qt SQL module provides support for SQL databases. Qt SQL's APIs are divided into different layers:
- Driver layer
- SQL API layer
- User interface layer
The SQL Programming guide contains information about development using Qt SQL.
Using the Module
Using a Qt module requires linking against the module library, either directly or through other dependencies. Several build tools have dedicated support for this, including CMake and qmake.
Building with CMake
find_package() command to locate the needed module components in the
find_package(Qt6 REQUIRED COMPONENTS Sql) target_link_libraries(mytarget PRIVATE Qt6::Sql)
See also the Build with CMake overview.
Building with qmake
To configure the module for building with qmake, add the module as a value of the
QT variable in the project's .pro file:
QT += sql
Changes to Qt SQL lists important changes in the module API and functionality that were done for the Qt 6 series of Qt.
Licenses and Attributions
Qt SQL is available under commercial licenses from The Qt Company. In addition, it is available under free software licenses: The GNU Lesser General Public License, version 3, or the GNU General Public License, version 2. See Qt Licensing for further details.
Furthermore, Qt SQL in Qt 6.2.9 may contain third party modules under following permissive licenses:
These are links to the API reference materials and related pages.
© 2023 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.